选词填空【很简单的

选词填空【很简单的
increase,allow,make progress,waste,wonder
1.The man ______ to enter the room to sleep last week.
2.The Great Wall is one of the greatest ___ in the world.
3.I think it's ___ to buy things produced in foreign countries.
4.With my friend's help,I have ___in English.
5.An____ population is a social problem in many countries.